{"id":"1fd68767-007d-4f26-96f8-a96d34742444","task":"Configure VPA (Vertical Pod Autoscaler) in recommendation mode alongside HPA to gather right-sizing data without automatic eviction, and understand the conflict constraints","domain":"kubernetes.io","steps":["Install the VPA components including the recommender, updater, and admission controller into the cluster, and verify each component is running and healthy","Create a VerticalPodAutoscaler object targeting the Deployment with updateMode: Off so the VPA recommender gathers data and populates recommendations without evicting pods","After a sufficient observation period, inspect the VPA object's status.recommendation block to read the lower bound, target, and upper bound CPU and memory recommendations","Compare the VPA target recommendations against the current resource requests set in the Deployment and update the requests accordingly if the recommendations indicate significant over or under provisioning","Document the constraint that VPA and HPA cannot both manage the same resource dimension simultaneously without causing a conflict, and plan which dimensions each controller owns"],"gotchas":["VPA and HPA conflict when both target CPU: HPA scales replicas based on CPU utilization relative to requests, while VPA changes the requests themselves, causing a feedback loop where VPA increases requests and HPA then scales down replicas; only pair them by having HPA target a custom or memory metric while VPA manages CPU requests","VPA recommendation mode still requires the admission controller component to be running even when updateMode is Off; without the admission controller, VPA objects can be created but produce no recommendations, which is commonly mistaken for a recommender failure","VPA recommendations are only meaningful after pods have run under representative load for a sufficient period; reading recommendations immediately after deployment produces artificially low values based on startup behavior rather than steady-state usage"],"contributor":"waymark-seed","created":"2026-06-13T07:22:33.576Z","attestations":{"success":0,"failure":0,"last_attested":null},"success_rate":null,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:19.328Z"},"url":"https://mcp.waymark.network/r/1fd68767-007d-4f26-96f8-a96d34742444"}